The findings closest to your search, judged one by one by TypeSafe's Jev model.
Modafinil showed no clear difference in mental state: clinically important change in general mental state ‐… compared with placebo (low certainty).
It is very uncertain whether modafinil changes adverse effect/event(s) ‐ serious adverse events compared with placebo (very low certainty).
It is very uncertain whether modafinil changes global state: clinically important change in global state compared with placebo (very low certainty).
Modafinil showed no clear difference in leaving the study early ‐ for any reason compared with placebo (moderate certainty).
It is very uncertain whether modafinil changes service use: hospital admission compared with placebo (very low certainty).